sol-, soli-, solo- +

(Latin: sun)

girasol, girasole; fire opal
1. The sunflower; literally, "turning toward the sun", from girare, "to rotate, to turn".
2. An opal with brilliant flame-like yellow, orange, and red colors.
3. An opal that reflects light in a bright luminous glow.
hippolarium, hipposolarium (s) (noun); hippolaria, hipposolaria (pl)
A place with a large expanse of glass windows where special therapeutic treatment is provided for horses by means of exposure to sunlight: "At intervals during the performing season, the show horses were taken to the hippolarium for a sun bath."
insol
Short for insolate or exposure to the sun's rays.
insolate
1. To expose to the sun's rays.
2. To expose something to sunlight.
insolation
1. Exposure of a patient to the sun's rays or a sun bath for therapeutic treatment by sunlight.
2. The solar radiation striking Earth or another planet.
3. The act or process to exposing to the rays of the sun for the purpose of drying or maturing; such as, fruits, drugs, etc, or of rendering acid, as vinegar.
lunisolar
1. Pertaining to the mutual relations of the sun and moon, or resulting from their combined action.
2. Lunisolar period: a cycle of 532 years, that number being the product of 19 and 28, the numbers of years in the cycles of the moon and sun respectively.
3. Lunisolar year: a year whose divisions are regulated by the revolutions of the moon, while its average total length is made to agree with the revolution of the sun.
parasol
1. A light, usually small umbrella carried as protection from the sun.
2. An umbrella made to provide shade from the sun.
3. Etymology: from French parasol (1580), from Italian parasole; literally, "protection from the sun", from para-, "defense against" (from verb parere, "to ward off") + sole, "sun" from Latin solem, sol).
Scientia sol mentis.
Knowledge, the sun of the mind.

Motto of Delaware College, USA.

Sol
1. In Roman mythology, an ancient Roman god; the personification of the sun; a counterpart of Greek Helios.
2. The sun, personified by the Romans as a god.
Sol lucet omnibus.
The sun shines for everyone.
solaire
A name generally applied to winds from an easterly direction; (that is, from the rising sun) in central and southern France. Local variants are soul├ędras, soul├Ędre.
solano
1. A hot, oppressive wind which sometimes blows in the Mediterranean, particularly on the eastern coast of Spain.
2. A southeasterly or easterly wind on the southeast coast of Spain in summer; usually an extension of the sirocco.

It is hot and humid and sometimes brings rain; when dry, it is dusty.

solar
1. Relating to or derived from the sun or utilizing the energies of the sun.
2. Referring to, or proceeding from the sun; such as, "solar rays" and "solar physics".
3. Using or operated by energy derived from the sun; including "a solar heating system".
4. Determined or measured in reference to the sun, as the "solar year".
5. Describing any renewable form of energy that does not create greenhouse gas emissions or nondegradable toxic wastes.
solar activity
A term for variations in the appearance or energy output of the sun; usually associated with the variation of sunspots and other features over the eleven-year solar cycle.
solar air heater
A type of solar thermal system in which air is heated in a collector and either transferred directly to the interior space or to a storage medium.

Related "sun" word family: helio-.